Antec make some good cases. I've got one of their 'Ultimate Gamer' cases and i've had it for about 3 years or so now without having any problems with it. Good build quality, plenty of room inside, lots of ventilation and at a good price. As the previous poster has mentioned, Coolermaster make some good stuff as do Thermaltake.
The HAF X is just about the best (and definitely one of the coolest looking) cases for gaming pcs. It is highly rated. Most cases do not come w/fans but this comes w/1 frontal fan and 1 rear fan (though you can switch these out). This case has enough room for your GPU